Begin switching to JSpecify annotations (#11448)

* Begin switching to JSpecify annotations

* more

* fixes

patches/api/Add-TameableDeathMessageEvent.patch

@@ -18,11 +18,12 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +import org.bukkit.event.HandlerList;
 +import org.bukkit.event.entity.EntityEvent;
 +import org.jetbrains.annotations.ApiStatus;
-+import org.jetbrains.annotations.NotNull;
++import org.jspecify.annotations.NullMarked;
 +
 +/**
 + * Called when a {@link Tameable} dies and sends a death message.
 + */
++@NullMarked
 +public class TameableDeathMessageEvent extends EntityEvent implements Cancellable {
 +
 +    private static final HandlerList HANDLER_LIST = new HandlerList();
@@ -31,7 +32,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    private boolean cancelled;
 +
 +    @ApiStatus.Internal
-+    public TameableDeathMessageEvent(@NotNull Tameable tameable, @NotNull Component deathMessage) {
++    public TameableDeathMessageEvent(final Tameable tameable, final Component deathMessage) {
 +        super(tameable);
 +        this.deathMessage = deathMessage;
 +    }
@@ -41,7 +42,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     *
 +     * @param deathMessage Death message to appear
 +     */
-+    public void deathMessage(@NotNull Component deathMessage) {
++    public void deathMessage(final Component deathMessage) {
 +        this.deathMessage = deathMessage;
 +    }
 +
@@ -50,12 +51,10 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     *
 +     * @return Death message to appear
 +     */
-+    @NotNull
 +    public Component deathMessage() {
 +        return this.deathMessage;
 +    }
 +
-+    @NotNull
 +    @Override
 +    public Tameable getEntity() {
 +        return (Tameable) super.getEntity();
@@ -67,17 +66,15 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +    }
 +
 +    @Override
-+    public void setCancelled(boolean cancel) {
++    public void setCancelled(final boolean cancel) {
 +        this.cancelled = cancel;
 +    }
 +
-+    @NotNull
 +    @Override
 +    public HandlerList getHandlers() {
 +        return HANDLER_LIST;
 +    }
 +
-+    @NotNull
 +    public static HandlerList getHandlerList() {
 +        return HANDLER_LIST;
 +    }